Grav Labs - Concentrate Nail Head Attachment for Helix Multi Pipe

Smoke BHO or other concentrates through your Helix Multi Pipe using this nail head attachment! Made of clear borosilicate glass, this piece has a top load vapor globe, glass concentrate nail and a glass-on-glass joint. Choose 14.5mm for the standard size Helix Multi Pipe or 18.8mm for the XL size Helix Multi Pipe.